Here are key facts you need to know when the 49ers (2-10) visit the Houston Texans (4-8) on Sunday:

SITE: NRG Stadium

KICKOFF: 10 a.m. PT (noon CT)

TV: Fox Ch. 2 (Dick Stockton, Mark Schlereth, Shannon Spake)

RADIO: 680 AM & 107.7 FM (Ted Robinson, Tim Ryan)

THREE KEYS

1. Sack Savage. Texans quarterback Tom Savage is 1-4 since replacing the injured Deshaun Watson, and he’s highly prone to turnovers this season (seven fumbles, six interceptions). He threw for a career-high 365 yards last game, but he got sacked four times. With left tackle Julien Davenport out and left guard Xavier Su’a-Filo playing with a groin injury, look for pressure from DeForest Buckner, Solomon Thomas, Cassius Marsh and Elvis Dumervil.

2. Stay hot offensively. Jimmy Garoppolo wasn’t alone in having a positive game last Sunday in Chicago. The offensive line had one of its best outings all year, and the receivers were near perfect. Assuming the 49ers can’t replicate all that success, they’ll need help elsewhere. Running backs Carlos Hyde and Matt Breida, as well as tight ends Garrett Celek and George Kittle, are due for more production.

3. Minimize Texans playmakers. Unlike the Bears, the Texans have game-changing threats on both sides of the ball. The 49ers offense must track Jadeveon Clowney (nine sacks) wherever he lines up, and the 49ers defense must not let DeAndre Hopkins shred their secondary. Also, the 49ers improved run defense not let Lamar Miller get in a flow.